These notes grew out of my preoccupation with writing a grammar of a particular language, Cahuilla, which is spoken in Southern California and belongs to the Uto-Aztecan family. [...] The Introduction to the Grammar as a whole – of which two sections are reproduced here in a modified version – tries to integrate the synoptic views of the different chapters into a series of comprehensive statements. The statements cluster around two topics: 1. A presentation of Cahuilla as a type of language. 2. Remarks on writing a grammar.

The basic idea I want to develop and to substantiate in this paper consists in replacing – where necessary – the traditional concept of linguistic category or linguistic relation understood as 'things', as reified hypostases, by the more dynamic concept of dimension. A dimension of language structure is not coterminous with one single category or relation but, instead, accommodates several of them. It corresponds to certain well circumscribed purposive functions of linguistic activity as well as to certain definite principles and techniques for satisfying these functions. The true universals of language are represented by these dimensions, principles, and techniques which constitute the true basis for non-historical inter-language comparison. The categories and relations used in grammar are condensations – hypostases as it were – of such dimensions, principles, and techniques. Elsewhere I have outlined the theory which I want to test here in a case study.